Device for regulating teeth.



No. 646,629. Patenfed Apr 3, I900.

w. 'P. SUGATT';

DEVICE FOR REGULATING TEETH.

(Applicatiop filed Mar. 23, 1899.)

(No Model.)

WiTNESEEE @WUZ4 rm: mama rzrzns do. vno'm-umm WASHINGTON, o, c.

I INVENTU Q 6 of ligatures or bands. 4

upper jaw and the teeth therein.

UNITED STATES PATENT OFFICE WILLIAM 'P; SUGATT, or- BOSTON, MASSACHUSETTS.

' DEVICE FOR REGULATING TEETH.

SPECIFICATION forming part of Letters Patent No. 646,629, dated April 3, 1900.

' Application filed March 23, 1899.

To all whom it may concern:

Be it known that I,'WILLIAM P. SUGATT, a citizen of the United States, residing at Boston, in the county of Suffolk and State of lllassachusetts', have invented new and useful Improvements in Devices for Straightening Teeth, of which the following is a specification. v I

The object of this invention is to produce a device for regulating or straightening teeth.

The invention consists in an elastic plate of vulcanized rubber so formed andconstruct ed as to press against the particular tooth or teeth whichit is desired-to straighten and to stay in position in the month without the aid In the drawings like numerals refer to like parts throughout the several views thereof.

Referring to the drawings, Figure .1 isa plan view of a plaster cast of the teeth of'anupper jaw. Fig. 2 is a plan view of my improved 'tooth-regulating device. Fig. 3 is a section taken on line 3 3, Fig. 4. Fig. 4 is a .plan iew similar to Fig. 1 with the tooth regulating plate in position thereon.

In the drawings, 1 is a plasterv cast of the Said cast is made from a wax mold taken from the patients mouth in the usual well-known man- I plaster cast 1, which isan exact duplicate of the patients upper set of teeth, the operator scrapes a slight portion of the plaster away from the inner side'of 2 and from the outer side of 4. A wax impression is next taken of the plaster cast of the same shape as the regulating-plate 5, Fig. 2, and the regulating-plate 5 of vulcanized rubber is made from this wax impression in a manner well known to those skilled in the art. The regulating-plate 5 is smoothed and polished carefully to keep it from hurting the patients mouth. The plate 5- fits the teeth closely, but presses against 2 and 4 harder than the others on account of the plate having been taken from the cast 1 after the latter had been changed, as described, by scraping a slight portion of the plaster oif at the points 2 and 4, and hence adding onto the plate 5-at 'tient without the aid of the operator.

verysimple and efiective. There is no mech' the points 6 and 7 corresponding thereto. The'plate 5 consists of an outer rim 8 and an inner rim 9, said outer and inner rims fitting the teeth and being joined together at the ends by the cross-pieces 1O 11, which fit over the crowns of two teeth, thus serving to keep the plate in position in the mouth. It is not necessary to include'all the-teeth in be included. It will be seen and understood that after the irregular teeth have been forced back by the plate 5 for several days a new plate can be made by scraping a little more plaster from 2 and 4 and constructing another plate 5 from the cast 1-,'as.before. It

will thus be seen that a'tooth may be gradu-' ally forced into position and that the opera tor will in each change of the plate 5, having the cast 1 as a model, be enabled to positivelyconstructfa new plate 5, differing from the preceding one by the exact amount which he removes from the plaster cast 1. Thus by these gradual changes the tooth is brought,

into. the properpositionwithlittle if any pain or inconvenience to the patient.

The plate 5 is easily placed in position in the mouth and as easily removed by the pa- It is anism to get out of order and can be worn as much or as little as may be desired. Dur- .Ing meal hours the plate can be removed.

The advantages secured by the ease with which the plate can be removed from the mouth and cleansed cannot be overestimated whencompared with the fixed ligatures and bands used for accomplishing the same purpose and which require the aid of an experienced operator to secure their removal.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, isv l. A plate for straightening teeth so constructed as to fit the teeth, consisting of an inner rim and an outer rim, connected at their ends by cross-pieces, and all of elastic material, and a projection carried by a rim, substantially as described for the purpose specified.

2. A plate 5 for straightening teeth, consisting of an inner rim 9, an outer rim 8 contoo structed to bear against the inner and outer my hand in presence of two subscribing witsides respectively of the teeth, said inner and nesses. outer rims being connected at their ends by I the cross-pieces 1O, 11, all of elastic material, 5 substantially as described for the purpose Vitnesses:

specified. JAMES M. PERKINS,

In testimony whereof I have hereunto set ROBERT C. BROOKER, Jr.

WILLIAM P. SUGATT. 

